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Rebels Engage Gaddafi Forces in Close Combat in Libyan City Of Misrata Struggles Against Gaddafi's Forces

Heavy EngineeringManufacturing and Engineering
Libyan rebel forces fire a heavy rocket propelled grenade at a building holding government loyalist troops during street fighting on Tripoli Street in downtown Misrata April 20, 2011 in Misrata, Libya. Chris Hondros, Getty Images